Title of article
Radar Sea Clutter Suppression and Target Indication with a Spatial Tracking Filter
Author/Authors
LIU, Jingyao Tsinghua University - Department of Electronic Engineering, Intelligent Transportation Information System Laboratory, China , MENG, Huadong Tsinghua University - Department of Electronic Engineering, Intelligent Transportation Information System Laboratory, China , ZHANG, Hao Tsinghua University - Department of Electronic Engineering, Intelligent Transportation Information System Laboratory, China , WANG, Xiqin Tsinghua University - Department of Electronic Engineering, Intelligent Transportation Information System Laboratory, China
From page
228
To page
234
Abstract
It is an important issue to study sea clutter suppression because it could interfere with the detection of targets above the sea surface severely. Spatial spectrum analyses show that the majority of sea clutter has low-frequency characteristics, compared to the high-frequency characteristics of the targets. This paper proposes a frequency-based spatial tracking filter to suppress sea clutter to facilitate targets identification.Experimental results show that the signal-to-clutter ratio can increase by more than 10 dB after filtering and the algorithm is feasible for practical use. In addition, the filtering equation can be optimized to maximize the signal-to-clutter ratio improvement. The equation parameters can also be adjusted to give a proper cut-off frequency for different targets and clutter.
Keywords
spatial spectrum , spatial tracking filter , sea clutter suppression , target indication
Journal title
Tsinghua Science and Technology
Journal title
Tsinghua Science and Technology
Record number
2535268
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